This machine used to make the steel plate into barrel
shape,Circular shape,Conical sharp, etc.The upper roller can move vertically as well as horizontally, it
can finish the pre-bending work and rolling work at the same
machine.The upper roller is drum-type design, so it has the
anti-deformation function. There is equipped the supporting rollers
under the lower rollers, it can help to make the high precision
products.The lower rollers are fixed symmetrically deployed relatively to
upper roller; mechanical drive is employed for driving lower
rollers. Upper roller ascends or descends at the central symmetric
location of the lower rollers; the ascending and descending are
hydraulic driven. Upper roller moves to the left or right position
to prepare for pre-bending work. The limited switches control the
shift position. The upper roller movement is PLC controlled and LCD
display is employed for displacement.Hydraulic drive is employed for reversing and resetting of the
reversal side.Moving control station is employed for the control system; you can
operation the machine at any position around the machine.

Applications:

The 3 Roll Variable Pitch aka Variable Geometry works by having all
three rolls being able to move and tilt. The Top-Roll moves on the
vertical plane. The Side-Rolls move on the horizontal plane.

Competitive Advantage:

With the Side-Rolls all the way open, then you have the maximum
mechanical advantage. With the Side-Rolls all the way in, you have
the least mechanical advantage. So, your machine has a capability
of rolling 2" thick material with the maximum mechanical advantage,
but your job is only 1/2" thick. Simply reduce the mechanical
advantage and you have a machine that can roll from 1/2" ~ 2"
thick.